Descon Extra Razor

Scratch - Extra Razor {Scratch}

Contributed by Barry Lynch

Manufacturer: Scratch
Extra Razor
(Contributed - by Barry Lynch) 

MaterialsRocketPic

2 each 18" BT-60

1 each 18" BT-56

Transition BT-60 t' BT-56

NC-56 Nose Cone

24mm Motor Mount Kit 

5' length o' elastic shock cord

18" Parachute

NC-60 Nose Cone ( if desired)

3" length o' Nylon Twine

Small D-Ring

2 each Launch Lugs 3/8 t' 1/4

Assembly Instructions

  1. Cut one o' t' BT-60 tubes into 6 equal lengths (approximately 3" each)
  2. Glue t' 6 sections t' base o' other BT-60 
  3. Make and insert 24mm Motor Mount Kit
  4. Tie knot in each end o' t' 3" length o' Nylon Twine
  5. Tape twine about 2" into t' BT-60 airframe in U shape
  6. Epoxy t' twine t' t' BT-60 and t' Launch lug 2" down from top o' BT-60
  7. Tie shock cord t' transition section and feed through bottom o' transition
  8. Epoxy t' Transition t' t' BT-56
  9. Epoxy t' NC-56 Nose Cone t' t' BT-56
  10. Tie shock cord t' small D-ring 
  11. Connect D-rin' t' Nylon Twine Loop
  12. Prepare for flight
If desired, arrr, t' BT-56 section can be removed and the rocket flown with just a NC-60 attached t' t' shock cord.

Add weight t' NC-60 for stability if needed.

Flight Report

Intended for D12-5, D12-7, E15-7, shiver me timbers, E-30-7 motors. Well, blow me down! At full length (36") a D12-7 deployed t' chute after apogee. With only the NC-60 in place on D12-7 t' altitude was noticeably higher. Blimey! Blimey! I used streamers for this configuration which worked fine.

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